1) Which of the following combinations of satellite navigation systems provide the most accurate position fixes in air navigation? Report

NAVSTAR/GPS and GLONASS

NAVSTAR/GPS and NNSS-Transit

NNSS-Transit and GLONASS

2) Which of the following is one of the functions of the Course-Line-Computer in a basic Area Navigation (RNAV) system? Report

It transfers the information given by a VOR/DME station into tracking and distance indications to any chosen Phantom Station/waypoint

It checks the ground station accuracy using a built-in test programme

It automatically selects the two strongest transmitters for the Area-Nav-Mode and continues working by memory in case one of the two necessary station goes off the air

3) What is the deviation per dot on the HSI when using an 2-dot RNAV system in the approach mode? Report

10 NM

0.5°

10�

4) What is the deviation per dot on the HSI when using a 2-dot basic RNAV system in the en-route mode? Report

5 NM

1 NM

2 NM

5) (For this question use annex 062-12410A) Which of the distances indicated will be shown on a basic VOR/DME-based Area Navigation Equipment when using a 'Phantom Station' at position 'X'? Report

11 NM

14 NM

9 NM

6) (For this question use annex 062-12409A) Which of the distances indicated will be shown on a basic VOR/DME-based Area Navigation Equipment when using a 'Phantom Station'? Report

11 NM

12 NM

21 NM

7) The geometric shape of the reference system for the satellite navigation system NAVSTAR/GPS, defined as WGS 84, is: Report

a geoid

an ellipsoid

a mathematical model that describes the exact shape of the earth

8) A Primary radar operates on the principle of: Report

continuous wave transmission

pulse technique

transponder interrogation

9) Which of the following radar equipments operate by means of the pulse technique? 1. Aerodrome Surface Movement Radar 2. Airborne Weather Radar 3. Secondary Surveillance Radar (SSR) 4. Aerodrome Surveillance (approach) Radar Report

1, 2, 3 and 4

1, 2 and 4 only

2, 3 and 4 only

10) The maximum theoretical range at which an aircraft at FL210 may receive signals from a VOR facility sited 340 feet above mean sea level is approximately: Report

204 NM

245 NM

163 NM

11) An aircraft carrying out an ILS approach is receiving more 90 Hz than 150 Hz modulation notes from both the localiser and glidepath transmitters. The ILS indication will show: Report

Fly left and fly up

Fly right and fly down

Fly left and fly down

12) Which combination of characteristics gives best screen picture in a primary search radar? Report

long pulse length and narrow beam

short pulse length and wide beam

short pulse length and narrow beam

13) Ignoring pulse length and fly-back, a radar facility designed to have a maximum unambiguous range of 50 km will have a PRF (pulses per second) of: Report

330

3000

6000

14) What is the maximum distance between VOR and DME/TACAN ground installations if they are to have the same morse code identifier? Report

600 m

2000 m

60 m

15) A DME station is located 1000 feet above MSL. An aircraft flying at FL 370, 15 NM away from the DME station, will have a DME reading of: Report

17 NM

16 NM

14 NM

16) A VOR is sited at position A (45°00'N, 010°00'E). An aircraft is located at position B (44°00'N, 010°00'E). Assuming that the magnetic variation at A is 10°W and at B is 15°W, the aircraft is on VOR radial: Report

185°

180°

190�

17) The maximum pulse repetition frequency (PRF) that can be used by a primary radar facility in order to detect targets unambiguously at a range of 50 NM is: (pps = pulses per second) Report

713 pps

1620 pps

3240 pps

18) In a primary radar using pulse technique, the ability to discriminate between targets in azimuth is a factor of: Report

pulse length

beam width

aerial rotation rate

19) In a primary radar using pulse technique, the ability to discriminate between targets in azimuth is a factor of: Report

pulse length

beam width

aerial rotation rate

20) In a primary radar using pulse technique, the ability to discriminate between targets in azimuth is a factor of: Report

pulse length

beam width

aerial rotation rate

EASA Questions Radio Navigation Basic Radar Principles

Radio Aids

Basic Radar Principles

Area Navigation Systems